police are looking for jimmy hoffa's remains again. we'll tell you what they found in a house near detroit. [ male announcer ] does your prescription medication give you the burden of constipation? turn to senokot-s tablets. senokot-s has a natural vegetable laxative ingredient plus the comfort of a stool softener for gentle, overnight relief of occasional constipation. go to senokot-s.com for savings. and sounds vying for your attention. so we invented a warning you can feel. introducing the all-new cadillac xts. available with a patented safety alert seat. when there's danger you might not see, you're warned by a pulse in the seat. it's technology you won't find in a mercedes e-class. the all-new cadillac xts has arrived, and it's bringing the future forward. >>> new fiefr in a decades old mystery. the disappearance of jimmy hoffa, crews are digging under a shed for his possible remains say they didn't find any bones but the investigation isn't over. soil samples have gone to a lab for testing. susan candiotti has more. >> could thes